/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.dolphinscheduler.service.log;

import org.apache.dolphinscheduler.plugin.task.api.TaskConstants;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.filter.Filter;
import ch.qos.logback.core.spi.FilterReply;

/**
 * task log filter
 */
public class TaskLogFilter extends Filter<ILoggingEvent> {

  private static Logger logger = LoggerFactory.getLogger(TaskLogFilter.class);

  /**
   * level
   */
  private Level level;

  public void setLevel(String level) {
    this.level = Level.toLevel(level);
  }

  /**
   * Accept or reject based on thread name
   *
   * @param event event
   * @return FilterReply
   */
  @Override
  public FilterReply decide(ILoggingEvent event) {
    FilterReply filterReply = FilterReply.DENY;
    if ((event.getThreadName().startsWith(TaskConstants.TASK_APPID_LOG_FORMAT)
        && event.getLoggerName().startsWith(TaskConstants.TASK_LOG_LOGGER_NAME))
        || event.getLevel().isGreaterOrEqual(level)) {
      filterReply = FilterReply.ACCEPT;
    }
    logger.debug("task log filter, thread name:{}, loggerName:{}, filterReply:{}, level:{}", event.getThreadName(),
        event.getLoggerName(), filterReply.name(), level);
    return filterReply;
  }
}
